According to police, Santos Vladimir Ralda, 45 and his wife, Floridalma Youlanda Perez Diaz, 40, both of Springfield, and Nathanael Owen Cooper, 20, of Culloden, W.V., were were arguing before the incident erupted.

Detectives believe Ralda shot his wife and Cooper before turning the gun on himself.

All three had been attending an event at a home in the 8600 block of Cromwell Drive.